C as fine fillers to improve poly(phenylene sulfide) electrical conductivity and mechanical property.

Electrical conductive poly(phenylene sulfide) (PPS)/fullerene (C) composites were prepared by 1-chlornaphthalene blending method, and the interface effects of C and PPS on PPS/C properties were characterized. C is an excellent nanofiller for PPS, and 2 wt% PPS/C composite displayed the optimal conductivity which achieved 1.67 × 10 S/cm. However, when C concentration reached 2 wt%, the breaking strength and tensile modulus of PPS/C fiber achieved maximum 290 MPa and 605 MPa, and those values were 7.72 and 11.2 times as that of pure PPS. The excellent conductive and mechanical properties of PPS/C were attributed to the heterogeneous nucleation of C during PPS crystallization, formation of a large number of covalent bond by main C-thiol adducts and minor C-ArCl alkylation between C outer surface and PPS matrix. At same time, PPS/C thermal properties were also investigated.